Shuttle



Feb. 28, 1933.

Filed Oct. 9, 1,950

C. BALDWIN SHUTTLE w III? will 2 Sheets-Sheet l Ill' %fw ATTORNE Feb. 28, 1933. l I Q BALlpwlN` 1,899,129

SHUTTLE Filed Oc't. 9, 1930 2 Sheets-Sheet 2 /eo l- 'MEI 60 [72 70 F JNVENToR. m C IMI WM @www @MMM MMM Patented Feb; 28, 1,933I

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PATENT-'ormoni LUTHER `C?. BALDWIN, `DECEASED,' LA TE OF PROVIDENCE, RHODE ISLAND, BY RHODE- ISLAND HOSPITAL TRUST COMPANY, ADMINISTRATOR, 0F PROVIDENCE,BHODE ISLAND, ASSIGNOR TO U. S. BOBBIN & SHUTTLE COMPANY 1929, 0F PROVIDENCE, RHODE ISLAND, ACORPORATION OF RHODE'ISLAND SUTTLE Appneanonaied october `9, 1930. serial No. 487,554.'

This invention relates to what are known in the tradeas take updevices for shuttles.

The purpose of such devices is to takeup the slack of the thread at certain stages of the movements of the shuttle through the warp., and especially ifthe shuttle rebounds,

It is known that yvarious kinds of take up tensions have been provided for what are known as hand threading shuttles or 'suc tion shuttles, but such devices are not adapted for the automatic shuttle to which this device applies.

The problem with the automatic shuttle is to provide a device of such character that it will not prevent theL thread fromthreadmor.

It is also known that take up members having fingers or arms'of various types which move between stationary guides or fingers have been used and tried and that the movement of such take up members has been from side to side and also` up and down, but it is believed that this is the first instance atake up member is provided vwhich can move up and down and whichl is normally held b a spring in the up position whereby on the rst pick the tendency of the thread is to force this member down. v

The friction member must take hold quick- 1y to prevent ballooning and coils of thread from springing off and .must overcome the resistance of the take up member, so that l slack thread will be pulled back in through the shuttle eye and not forward from the bobbin. Y

It is also believed that this is thefirst instance in an automatic shuttle that a vertically movable take up device of this type, or of any other type with a friction member behind it of such character that the thread will immediately enter the mouthk of such friction member as soon as the shuttle begins to move on the first pick thereby, creating a suiiicient tensionon the thread tofovercome the force of the springwhich operates the take up member and cause `the thread togo down on the first pick under the nose of the shuttle block'in lposition to be threaded on the second pick. f

Withtake up devices for `hand threaders such as shown in patents to Canova, #1,458,- 639 of June 12, `1923;Grloor, #1,409,705of March 14, 1922;` Pavia, #1,439,322 of Dec. 19, 1922 and others, no such friction device is necessary, as the take up ismoved by hand to catch the thread. Such a friction member' is not as necessary with a take up device for automatic shuttles which move sideways,

such asis shown in patents to Rubin, #1,661,

308 of March 6, 1928 and #1,770,947 Of July e2,` 1930, verdegem et a1, f #1,704,309 fof March 5, 1929.

While there may be other types of friction devices or what are known inthe trade as drag tensions, it is claimed that this is the first time such a device which is` located near the front end of the bobbin chamber, at the rear of the shuttle block and take up device and which has a mouth open at the-topiand in the path of the yarn as it unwinds from the bobbin and whichl connects with afriction ,throat formed by guide and friction members which extend from the mouth down and in a tangential direction to said path has been made. f

With such a construction, the unwinding thread is instantly caught and there is `no tendency thereafter to escape.

In the drawings, Fig.f1 is a planiview of a shuttle with the preferred form lof, thev device -in place.

(Fig. 2 'is a vertical section onthe linel of Fig. 1 viewed from the direction of the arf' row, the fur, however, beingomitted for i clearness.` f

Fig. 3 is a view similar to Fig. 2, but showing the moving parts in a different position. Fig. fis an enlarged vertical sectional view online 4-4 of Fig; 2viewed fromthe'direction of the arrow. L

y Fig." 5 is an enlarged detail view ofthe take up member spring and cooperating parts. Fig. 6 is an enlarged vertical sectional View taken on the line 6 6 of Fig. 2 viewed fromthe direction of the arrow.

Fig. 7 is a view similar to Fig. 6 of a modification.

Fig; 8 is a viewsimilar to Fig. 6 of another modification. 1 f 1 Fig. `9 is a plan view Vof a modifiedv type of Fig. 13 is a baclr elevation of friction member H.

In the drawings, S represents a shuttle as a whole including the wooden part 1, metal tip 2 and the metal shuttle blocl; sometimes called the eye or threader 3.

10 represents the bobbin chamber in the Wood which extends up to the threading chamber 11.

Thewood at 4 is cut away to form a recess to receive the shuttle block 3 which has a side wall on the side of the shuttle eye 13 and a bottom wall 36.

These together with the wall- 6 of recess 4 form a continuation 7 or part of threading chamber 11 which is continued out in front of block 3 as far as tip 2.

,An eye slot- 12 extends back in the wood fromthe forward part of threading chamber 11 diagonally back to the eye 13 in the wood in the side of the shuttle.

YWhile as shown the shuttle block 3 has a bottom .wall 36 and side wall 35, its main purpose is to provide the thread directing guide plate 2O which extends fiush with the wooden top of the shuttle down and over at 21 into the threading chamber and thence extends forward and terminates in a nose 22 at the top front end.

It slopes over and back diagonally at 26 to form one wall of the eye slot to guide the thread T down around the well known type of horn 23 and over and out the shuttle eye 13 on the second pick.

rThis horn 23 slopes down and back almost touching the` front edge of the base 36 of block 3 and then extends up and forms a circular passagel 27 through which the thread passes after extending around thread pin 28,

as shown in Fig. 3.

From the under side 34 of guide plate 20 and extending out from the side 35 next the .shuttle eye are a plurality, shown as three,

fins 30, 30, 30. These extend down, preferably diagonally forward, to a line which is slightly above the upper part of hole 27 and above the point 29 at the bottom of horn 23 so. that when the thread T is drawndown as it unwinds from the bobbin B in bobbin recess `10, it can go down under the bottom edges 36,

40 on a horizontal pivot 41 which is near theback of the threading chamber and, as shown, is in the back of block 3.

This take upv member A has a forward guide lin 45 which guides it in slot 57 in block 3 in such manner as to limit its sidewise movement. A tail 46 limits the upward movement of take up A.

lTake up member A has a side bar 42 from the lower edge 48 of which extend the arms v 43, 43, 43, 43 horizontally under the bottom edge 34 of guide plate 20 towards the eye side of the shuttle between the fins 30, 30, 30.

Preferably the side bar 42 extends parallel with and proximate the inside wall 6 of the threading chamber and extends up a little above the adjoining ends of arms 43 as shown in Fig. 4.

The free ends of arms 43, 43, 43, 43 are bentY up at 44, 44, 44, 44 whereby when the thread T gets down under the bottom edges 36 and tips 37, it will stay in place between 48 and the ends 44.V

In a recess 54 in the back bottom part of block 3 is compressionspring 55 which is adjusted by means of a screw 53.

This spring presses up against the under side oftale up member A, undo-r 45 and tends to keep the front end of this member with .its arms in the up position.

It preferred to use in connection with this talre up device, a drag tension of the type shown at F which is in position directly behind block 3.

As shown this drag tension can be dropped in between the slots 16 and 17 and preferably is of the diagonal type whereby the thread will enter an open mouth 63 the top in the path of the thread unwinding from the bobbin B. This mouth is formed by the lip which extends up diagonally from guide 64 and the upper end of the spring pressed friction plate guide member 67.

This guide G4 as shown, is xed and is integral with the body of the/tension member which has the front side 60, bach side 61 and sides 62 and 63.

160 represents the top diagonal edges of the back and front 61 and 60 and between these edges and the guide 64 is the movable friction plate 67 having sides 163 which extend down on each side of the back and front 60 and 61.

A spring 71 starts at 74 and is bent around pivot 7 O and from thence extends up under plate 67 at 75 thence down and through a hole 69 therein and a hole 66 in the part 64 i as a tail 76.

lThis spring tends to press the friction plate 67 up against the underside of the friction guide 64 and as the thread is instantly caught in the open mouth and as preferably these two parts extend down and in a direction tangential to that in which the thread unwinds from the bobbin B, as shown in Figs.

iso

f. so

v1 and. 2, thereisvery little danger of thread flying olf in coils .or ballooning. The thread is instantly caught'and firmly heldbetweenrv the battery and theA tension member while threading as soon as it starts to unwind.

- When, however', there is any slack between recess in the wood 1 ofthe shuttle two,l

curved diagonal friction guide plates 8e and each face-d with a strip of felt 81 or 82. These parts are so formed that the top part 88-of the recess 80 forms an open mouth connecting with the throat formed by the guide plates 84y and 85 and the pieces of felt 80 and 81.

, Instead of a diagonal drag tension device such as just described, as see Fig. 7, l can use behind the take up, a friction device similar to what is shown in patent to Verdegem etal. on Shuttle, Mari, 1929, #1,704,309, consisting of the two movable friction plates 171, 171 held in a holder 170 and pressed together by springs 172. 'y e In Figs. 9, 10, 12 and 13, a modification is shown of the construction in which S represents the shuttle. and 90 the shuttle block the top part of which 91 forms a thread directing guide plate which extends from thetop of the shuttle on the side of the eye 18 over and down into the threading chamber and which terminates in a nose 92 at the top front end from which the usual horn similar to 23 slopes down and back. y

The fins which extend down from and over the guide plate on the side of the shuttle eye in this case, however, are made of wire 94, 94, 94 one end of each being inserted into a suitable hole 96 in guide` plate 91 and the-other end being inserted in a similar hole in the inner side of block 90. e

The take up member indicated by 98 is pivotcd on a horizontal pin 101 near the back of the threading chamber and a plurality of thread supporting arms l97, 97,97, 97 nor mallv extend horizontally between the fins`9e, 9 4, 9i.

Take up member 98,as shown, `is coiled at about pin 101 and extends down as a tail 102.`

As shown in Fig. 12, avrubber band` 103 between tail 102 and a pin 104 provides the 6 elastic means to keep the member 98 norf Yes mally raised. f f

H is a friction member partly integral with shuttle block90. It has an open mouth at 120 which connects 'with a diagonal vthroat formed between friction' guides 121V and122. Guide 121 is a'plate similar to 168andk is normally pressed againstguide 122 'byfa spring 123.' Y y f Nhile diagonal open mouthed friction device or drag tension such asshown in Figs.

` f1, 2, 8, 6, 8 and 13 causes the take up to'worlr better,it is' possible as shown in-Fig. 7, to use `othcrtypes of friction devices or to oinitall "n friction devices'except perhaps some furR such as shown in 11. In such case, how- Y ever, it kis preferable to use onlyva single hread supporting arm 143 onthe take lup Y, member K which otherwise is the same as AQ Aftalre up member with a single arnrcan be made much lighter and a weaker spring can be used. It is useful with weak thread.

What is claimed is:

1. kThe combination in a shuttle for automatic looms having a bobbinchamber `from which there extends forward athreading chamber fromv which an eye slot extends back to an eye in thefside ofthe shuttle;r of a thread directing guide plate which extends from the top of the shuttle on theA eye side over and down into the threading chamber and which terminates in a nose at the top front end and from which a horn slopes down and back; a plurality of iins which extend down from under the guide plate on the side of the shuttle eye and which have substantially horizontal bottom edges theends of which terminate in downwardly extending tips; a take up member pivoted on va horizontal pivot near: the vback of the'fthreading chamber, said member including `a side bar from the lower edge of. ywhich a plurality of thread supporting armsk extend horizontally under the edge of the guide plate towards the eye side of the shuttle between said fins, said side bar extending parallel with and proximatetlie inside lwall of the threading'chamyber and projecting above the lingers, the free :l

endsv of said fingers beingy bent up; an adjustable compression ,spring which presses up against the underside of the take up member near its pivot; and a friction device positioned in front of' the bobbin chamber having a mouth open at the top'and inthe .path

of the. yarn as it unwinds from lthe bobbin,

said mouth connecting with'a `throat formed by two friction guide members,the adjoining surfaces of whichfextend down andin a direction tangeiitialto said path, oneof said guide members being spring pressed towards the other. e

`2. The combination in a shuttle :for automaticflooms having a bobbin chamber from which there extends forward a ...threading chamber from which an eye slot extends back toV an eye in the side of the shuttle; of a thread .directing `guide platey which extends from the top ofthe shuttle on theeyefside over and; down into the threading chamber and which terminatesin a nose at the top front end and from which a horn slopes down and back; a plurality of fins which extend down from under the guide plate on the side oi the shuttle eye and which have substantially horizontal bottom edges; a take up member pivoted on a horizontal pivot near the back of the threading chamber7 said member including a side bar `from the lower edge of which a plurality of thread supporting arms extend horizontally under the edge of the guide plate towards the eye side of the Shuttle between said fins, said side bar extending proximate the inside wall of the threading chamber, the free ends of said lingers being bent up; an adjustable compression spring which presses up against the underside oi' the take up member near its pivot; and a friction device positioned in front of the bobbin chamber having a mouth open at the top and in the path of the yarn as it unwinds` from the bobbin, said mouth connecting with a throat formed by two friction guide members, the adjoining surfaces of which extend down and in a direction tangential to said path.

3, The combination in a shuttle for automatic looms having a bobbin chamber fromV which there extends forward a threading chamber from which an eye slot extends back to an eye in the side of the shuttle; of a thread directing guide plate which extends from the top of the shuttle on the eye side over and down into the threading chamber and which terminates in a nose at the top front end and from which a horn slopes down and back; a plurality of fnswhich extend down from under the guide plate on the side of the shuttle eye and which have substantially horizontal bottom edges the ends of which terminate in downwardly extending tips; atake up member pivoted on a horizontal pivot near the back of the threading chamber, saidmember including a side bar from the lower edge of which a plurality of thread supporting arms extend horizontally under the edge of the guide plate towards the eye side of the shuttle between said fins, said side bar extending parallel with and proximate the inside wall of the threading chamber and projecting above the fingers, the .free ends of said iingers being bent up; an adjustable compression spring which presses up against the underside of the take up member near its pivot; and a friction device having a mouth open at the top located between the take up member and the bobbin chamber.

4: The combination in a shuttle for automatic looms having a bobbin chamber from which there extends forward a threading chamber from which an eye slot extends back to an eye in the side of the shuttle; of a thread directing guide plate which extends fromthe top of the shuttle on the eye side over and down into the threading chamber and which terminates in a nose at the top front end and from vwhich a horn slopes down and back; a plurality of tins which extend down from under the guide plate on the side of the shuttle eye and which havel substantially horizontal bottom edges the ends of which terminate in downwardly extending tips; a take up member pivoted on a horizontal pivot near the back of the threading chamber, said member including a plurality of thread supporting arms which normally extend horizontally between said fins; an adjustable spring which normally tends to raise said take up member; and a friction de rice located behind said take up member.

5. In an automatic shuttle having a thread directing guide plate which extends from the top of thc shuttle on the eye side over and down into a threading chamber and which terminates in a nose at the top front end and from which a horn slopes down and back; a iin which extends down from under the O'uide plate on the side of the shuttle eyey and has a substantially horizontal bottom edge; a spring actuated take up member pivoted onY a horizontal thread supporting arm which normally extends proximate said fin; and a friction device located behind said take up member.

RHODE ISLAND HOSPITAL TRUST COMPANY, Its duly authorised Administrator with the will anfnewed of the Estate 0f Luther C'. Baldwin, Deceased,

By P. H. GARDNER,

Vice President. 

